Air pump



V. E. CLARKE .Sept. 30, 1952 AIR PUMP Filed Nov. '7, 1944 r I A Patented Sept. 30, 1952 Vernie E. Clarke,

Los Angeles, Calif., assignor to Christine Association, Inc., a corporation of California Application November V7, 1944, Serial Nb. 562,364

This invention relates to a combined compres-v sorand vacuum pump, whichin its functions has as its primary object, both the provision of means for the production of compression and vacuum simultaneously by means of reciprocating pistons positioned by means of sleeves on a unit piston rod within a plurality, of cylinder chambers affixed end-to-end in line, separated bymeans of partition cylinder heads castin with the cylinder walls on one end with a flange, and a flange on the other end thereof as means offastening them together, means consisting of a plurality of valves, intake and outlet, within the partition cylinder head, forthe purpose of admitting air by suction from a connected vacuum tank by means of two common manifolds connected, to the several intake valves within the cylinder heads and for the purpose of compressing said air through the outlet valves and thence through a common manifold, a'ifixed to the several outlet valves, into a compression tank, both of which compression tank and vacuum tank maybe held in closed circuit-for use, with meanswithin'th'e partition head for sealing the piston rod passage way, and means, externally, for reciprocating the piston rod and its several pistons, and'a magnetic selective transmission for the purpose of con trolling the rapidity of the reciprocating device and thusthe impulses of the pistons.

Another object is the provision of means of positive, rapid and thorough action in exhausting air from 'a vacuum tank and transferring the air to a pressure tank which is smaller in sizeithan the vacuum tank so that pressure and vacuum is created in the respective tanks simultaneously with the same device, with a minimumv forward and backward stroke of thepistons within ,the

r 1 Claim; (01. 230-185) ing the pistons forward and backward, 'a casemultiple cylinder chambers end-to-endin line,

Another object is the provision of an economical source of power by means'of compression and vacuum in closed circuit and so that a large volume of each, compression and vacuum may be stored for use in the development of applied mechanical power. I I K Another object is a'compressor and a vacuum apparatus with the provision of a device so arranged that a shaft with a" collar integrally positioned centrally lengthwise thereof with tapered bearings placed back; to back onleither sideoi said collar within a metal block witht'wobushing locks nuts screwed in, onefon each end of said block, so that said shaft will not change its position laterally, horizontally, vertically" orjlength wise, no matter in whatp'osition said apparatus is placed, means attached tosaid shaft. formovement with an inserted member therein, with a half spiral and. reverse, a sliding piston with :8; dolly attached to follow in the spiral groove and reverse and thus when the casement and member I inserted revolves the piston is reciprocated. The device is easily accessible forjassembly. and disassembly.

Still another object of my invention is to provide means of exhausting air and compressing air from and to respective receptacles with a comparatively short reciprocating motion to operate said apparatus without requiring an excessively powerful driving motor. I

A further object is the provision of a combined compressor and vacuumapparatus' of the general character herein described which is very simple and economical to manufacture, install and operate and so compact that it requires relatively small space for installation. I Myinvention possesses other objectsand advantageous features some of which with those enumerated will be set forth in the following pr ferred embodiment of my invention illustrated in the drawing accompanying and forming part of the specifications. I

It is understood that I .do' not limit myself to the showing made by the" said drawing and speciform within the scope of forth in the claim.

Referring to the drawings: I

1 Fig. 1 is a view of the complete apparatus.

Fig. 2 is a view of a complete cylinder and partition cylinder head assembly.

Fig. 3 is a view of the thrust bearing, shaft and reciprocating device.

my invention as set Fig. 41s a view of the cylinderhead assembly Q for the last cylinder in the alignment.

Referring to the drawings more, specifically in which corresponding reference characters, indicate corresponding parts in the several views,

' l4'indicates one of the plural metallic cylinders,

which is fitted with flanges l5 and l 6. Flange I ii 'is attached to the outer endside of the cylinder partition-head I! which is recessed at '55 toreceive .a projection of flange I5 at 561 The cylinder partition head I! has placed in it a'straight hole I8, located ona radius midway between the outside periphery of partition member H and a center hole l9.v A circular hole 20 intersects hole 18 midway of its length from the outside periphery of member l1. ,1

Installed in hole I8 is a spring 2!, a ball .2 Band a ball 23, one on each end of spring, 2| and ball 22 is held in place by a bushing 24 against ball At the outside end of hole 26 areinstalled a nipple 26, a union 21, a nipple 28 in the union 2'1,

and inserted severally into the common manifold 29, which is connected byj-"a nipple 36, in-

serted into a checkvalve 3I, a" nippleSIlAfrom check valve 3I to a compression'tank 32, upon I which is mounted an indicating gauge 33, and an I outlet line 34 provided with a shut oiT valve 35 I I to hold pressure in tank 32, or to release pressure-- at will.

A circular hole 36 extends half way through 1 I the partition I! which intersects hole 31 at right angles, and another hole 33 drilled half way ends III and IDA fitted at both ends with sleeves I pis provided with dividing collar 18 separating two taper roller bearings 34v and 81 opposed to through member I! intersected by" ahole 33 placed at right angles thereto and enters member I! at a point 90 degrees removed from hole 26 I on the outside periphery of member II. In hole 31 is placed a circular screen/46 insertedjto the bottom of hole 31, and a spring 4I with a ball valve 42 held in place by a machinednipple'43, fitted with a union 44 to a nipple 45which are severally screwedinto a common manifold .46, which manifold 46 is connected by'a nipple 41, a check valve 48, a nipple '49 inserted intoth vacuum tank 56, upon which is a vacuum gauge 5|. An inlet pipe line 52 and a valvm53 is provided to open or close, the inlet from the outside of tank 5Ilat 54. The outlet at 34 on the compression tank 32 may be connected with the line at 54 on compression tank, 50, to form a closed circuit between the two tanks 32 and 56.

Likewise at hole 39A in member I1 is inserted a circular screen extending to the bottom of 3? within which is placed aspring with a ball valve 42A urged by the spring against a nipple ma-- chined to fit ball valve 42A andto hold it in place,

The nipple is connected by means ofa union to a second nipple which is screwed into a common manifold 46A. I a 1 I I a The flanges I5 and .I 6 are each fittedwith bolt holes 58 to receive bolts-5I,so, that a plurality of;

cylinders I4 may be assembled end-to-endin line.

The open end of cylinder I4 isprovided with a flange I5 with a projection insert I5A, tolwhich is fitted a cylinder head I! with a hole IBA half, way through intersecting a hole 20A extending at 'right angles to 'the outside periphery of IT, and

ahole 39A is drilled to intersect ,hole 38A drilled half way through member II. I

The end partition cylinder head II of the last installed cylinder is fitted with a plate IIA with bolt holes 58 to receive-bolts 5] so as to attach to flange I6A. The ouside hole I8A is fitted with aface plug 60, thus blocking off hole ISA on the outside end thereof. I I

Each successivev partition cylinder .head I! is provided with ahole I9 therethrough in, its center portion, and with two face bushings 62am} 62A which are circularly grooved 'onthe insidean'd designed to be inserted one from one side and) v the other from the other sideof saidmember In a hole 64 in theoutside peripherylof inenib er' II at a point 45 degrees removed from'hole '13! is inserted a grease fixture 65 through which I1 so that there is a cavity 63 between said bushin'gsgF- each other and arranged in cups and 82 both of which are positioned within a block 83 by means of insert lock nuts 85 and 88.

When shaft 11 rotates it causes member I6 with I4 to also rotate, which in turn causes member II, which is fitted interiorly witha dolly I3 set on a fixed pin 13A that travels in spiral 14 thereby causing annular member II, the piston rod 66 affixed thereto, and pistons 61 to reciprocate without rotating.

a End 10A of said piston rod 66 is provided with a lock washer 9|, a lock nut 32, a lock washer 93 a lock nut 94 adapted to tightenand to firmly hold all members on said rod firmly fixed in position within the several piston chambers 69.

In the operation of myinvention, power is applied to' the rotating shaft 11 and member I6 causing member II to move back and forth thus actuating the piston rod 66 together with the several pistons 61 mounted thereon within the several compartments 69 between the several cylinder head partitions II. The pistons 61, fitted with rings 61A are so arranged that they have an efiicient suction as well as compression as they are forced back and forth within the several compartments 69. When said pistons reciprocate a-vacuum is created on one side. of them and a compression on the other side. When thepiston 61 moves forward the intake port at 36 opens with vacuum and at 25 with compression and when the piston 61 moves backward then the port at 38A opens with vacuum and};jat 24' by compression. When vacuum is created air is exhausted from vacuum tank 50 and compressed intov compression tank 32. V I I Thus it will be seen that vacuum and compression is created by this apparatusiembodied in 'my'invention simultaneouslyfwith each stroke of the pistons within the cylinder compartments. While I have shown and described a specific embodiment of my invention, I do not limit myself to the exact details of "construction and arrangements shown, but may employ such changes and modification as occasions may require coming within the scope and meaningof the appended claim. V I

I claim:

of aligned cylinders, apiston within each of said cylinders, a single piston rod connectingsaid pistons: a rigidly exteriorly affixed annular casing onone end of the said plural cylinders in align- I ment, grooves longitudinally aiiixed degrees grease is forced as a seal to the reciprocating rod 1 66 upon which is mounted the several pistons 6! equipped with pistons rings 61A and positioned by sleeves 68 within the several -cylinde'r co mpartments 69. y j

Exteriorly of the vacuum compressor appa ratus, both ends of the piston rod 66 are threaded apart to the interior walls of said annular casing: a non-rotatable reciprocating annular member with means exteriorly thereof to engage said grooves, and means to attach the said non-rotat able reciprocating annular member to the piston v 3 ro'dof said device, a rotatable cylindrical member having a helical groove in the cylindrical surface thereof, means on the interior walls of said reciprocating member to engage the said helical groove, means to position said rotatable member rigidly longitudinally within said reciprocating member so that said reciprocating non-rotating 5 VERNIE E. CLARKE.

REFERENCES CITED The following references are of record in the file of this patent:

Number Number 6 v UNITED STATES PATENTS Name Date May Dec. 21, 1886 Hemenway Mar. 8. 1910 Rogers et a1 Nov. 17, 1914 Dudgeon Dec. 22, 1914 Brown July 3, 1917 Burd July 23, 1918 Wormley Apr. 7, 1931 Hunt 1 May 19, 1936 Estes Apr. 26, 1938 FOREIGN PATENTS Country Date Germany 1900 

